Paint.NET is a free image and photo editing software for Windows. It offers a user-friendly interface and a wide range of features that make it a popular choice for both beginners and more experienced users. Originally developed as a college project, Paint.NET has grown into a powerful tool that includes support for layers, blending modes, special effects, and a wide variety of plugins. Unlike more complex programs like Photoshop, Paint.NET focuses on simplicity and speed, making it ideal for quick edits or everyday graphic design tasks. It is regularly updated and maintained, with an active community that contributes tutorials, plugins, and support.